Apache Solr :数据导入处理程序异常-如何跳过零字节文件

<dataConfig>
  <dataSource name="myDataSource" type="FileDataSource" encoding="UTF-8" />
  
  <document>
    <entity name="file" dataSource="myDataSource"
            processor="FileListEntityProcessor"
            baseDir="/path/to/directory"
            fileName=".*txt$"
            onError="skip"
            recursive="true">
      <field column="fileAbsolutePath" name="id" />
      <field column="fileSize" name="size" />
      <field column="fileLastModified" name="lastModified" />
      <field column="file" name="content" />
    </entity>
  </document>
</dataConfig>